IN STARRY REALMS 



BY 



SIR ROBERT S. BALL, D.Sc., LL.D., F.R.S. 



LOWNDEAN PROFESSOR OF ASTRONOMY AND GEOMETRY IN THE 

 UNIVERSITY OF CAMBRIDGE 



AUTHOR OF " GREAT ASTRONOMERS," " IN THE HIGH HEAVENS," ETC. 



WITH NUMEROUS ILLUSTRATIONS 



CHEAP EDITION 



LONDON: SIR ISAAC PITMAN & SONS, LTD. 

 BATH AND NEW YORK 1908. 



